The first crocodiles(鳄鱼) lived on the Earth about 240 million years ago. How much do you know about these dangerous animals? Here are some amazing facts about them. ◆ The biggest crocodile is the saltwater crocodile. It can be as long as seven metres! ◆ If you take a bright light at night over a river with crocodiles inside, you will see pairs of red spots (点). Those are the crocodiles’ eyes. They can see well at night. ◆ When you see a crocodile with its mouth open, don’t be scared . That just tells you it’s too hot. ◆ On the beach, crocodiles get tired very quickly, but they can stay in the water for 2-3 hours. ◆ Most crocodiles can live up to 70 years old! 小题1: When did the first crocodiles live? A．About 2,400,000,000 years ago. B．About 240,000,000 years ago. C．About 24,000,000 years ago. D．About 2,400,000 years ago. 小题2:The writer thinks the crocodile is ____ . A．lovely B．dangerous C．fun D．cool 小题3: What’s the meaning of the underlined word “scared”? A．Happy. B．Sad. C．Comfortable. D．Afraid. 小题4: Which of the following is right? A．Crocodiles often open their mouths when it’s hot. B．Crocodiles can stay on the beach for 2-3 hours. C．All the crocodiles can live up to 70 years old. D．The writer talks about four facts about crocodiles.